fibonacci
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/**
* Given a number N return the index value of the Finonacci
* Sequence, where the sequence is:
*
* 0,1,1,2,3,5,8,13,21,34,55,89,144...
* The pattern of sequence is that each value is the sum of the
* 2 previous values, that means that for N=5 -> 2+3
*/
function fibonacciIterative(n) {
let fib = [0, 1];
for (let i = 2; i <= n; i++) {
fib.push(fib[i - 2] + fib[i - 1]);
}
return fib[n];
}
console.log(fibonacciIterative(6));
function fibonacciRecursive(n) {
if (n === 1 || n === 2) {
return 1;
}
if (n === 0) {
return 0;
}
return fibonacciRecursive(n - 1) + fibonacciRecursive(n - 2);
}
console.log(fibonacciRecursive(6));
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